Partitioned Power Storage Module With Isolated Cooling Paths

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The existing power storage modules face challenges in efficiently cooling multiple electrode assemblies housed in separate compartments, as heat generated in one compartment can easily be transmitted to others through partitions, leading to inefficient cooling.

Innovation Solution

A power storage module design featuring a case with partitioned compartments and dedicated cooling paths for each compartment, where the first and second cooling paths are strategically positioned to isolate and efficiently cool the electrode assemblies, reducing heat transfer between compartments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If partitions are used to separate electrode assemblies into compartments, then spatial organization and safety are improved, but heat transmission between compartments increases

Engineering Contradiction:
Improvecompartment separationVSAvoidheat transmission
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The cooling system is segmented into multiple independent cooling paths, with each cooling path dedicated to a specific compartment. This segmentation prevents heat from transmitting between compartments while maintaining effective cooling for each electrode assembly independently.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The partition structure serves as a thermal barrier (intermediary) between compartments, and the dedicated cooling paths act as mediators to remove heat from each compartment separately, preventing heat transmission while maintaining compartment separation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If dedicated cooling paths are provided for each compartment, then cooling efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvecooling efficiencyVSAvoidcooling path configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The case body is designed to serve multiple functions: it provides structural support, creates compartment separation through partitions, and simultaneously forms the cooling paths within its structure. This multi-functionality achieves dedicated cooling for each compartment without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The cooling paths are merged into the case body structure itself rather than being separate components. The case body integrates both the partitioning function and the cooling path function, reducing overall device complexity while maintaining dedicated cooling efficiency.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration allows for effective cooling of the electrode assemblies in separate compartments, reducing heat transfer and enhancing the overall cooling efficiency of the power storage module.

Implementation Method 1

heat generated from the electrode assembly in one compartment is easily transmitted to the other compartment through the partition

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4492538A1Power storage module
Publication Date: 2025.01.15 TOYOTA JIDOSHA KK
  • EP4492538A1 patent drawingFigure 1
  • EP4492538A1 patent drawingFigure 2
  • EP4492538A1 patent drawingFigure 3

AI summary

A power storage module has a case (200) including a case body (210) and at least one partition portion (220). The case body (210) surrounds a plurality of electrode assemblies (100). The partition portion (220) is located between the electrode assemblies (100) adjacent to each other to partition an accommodation space (S) of the case body (210). In the accommodation space (S) of the case body (210), the partition portion (220) forms a first compartment (S1) and a second compartment (S2) adjacent to the first compartment (S1) with the partition portion (220) interposed between the first compartment (S1) and the second compartment (S2). A first cooling path (500) and a second cooling path (600) are formed in the case (200), the first cooling path (500) extends in a portion of the case (200) that faces the first compartment (S1) without the second compartment (S2) in between, and the second cooling path (600) extends in a portion of the case (200) that faces the second compartment (S2) without the first compartment (S1) in between.